Calcium Reactors

Calcium reactors are designed to produce calcium and alkalinity for your aquarium. They do this by using carbon dioxide (CO2) to dissolve old coral skeleton or other calcium carbonate media which is then dosed or dripped into the tank. When used properly, Calcium Reactors provide a very precise method of maintaining calcium and alkalinity levels within a reef aquarium.

These reactors provide a simple solution for maintaining and stabilizing calcium and alkalinity for maximum growth of corals. Featuring a compact design and the use of quality material and read more ››

Great for dosing CO2 in a planted aquarium or for use with a calcium reactor. Includes flow regulator, needle valve, electronic solenoid & bubble counter. Unit comes with dual gauges each with dual read more ››

The already best-selling Kalkreacktor (Calcium Reactor) in Germany has become even better. The new and improved Korallin kalkreaktor allows a simple, elegant and high efficiency production of calcium read more ››

The already best-selling Kalkreaktor (Calcium Reactor) in Germany has become even better. It completely replaces Kalkwasser, 1 or 2-part Calcium/Buffer powder and liquid dosing. The new and improved read more ››

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Mail Order Pet Supplies (or MOPS as we're often referred to) was created in 1996 with the objective of delivering affordable prices to
Tropical Fish Hobbyists! Over the years we have used our warehousing, logistic and electronic capabilities to bring pond, reptile, bird and other pet products
to our customers. Through MOPS - Aquarium Supplies we are offering high-quality, brand name Aquarium products including filters, heaters, pumps, lighting, nutrition and much more for the Tropical Fish Hobbyist.